TRIHEDRON


Meaning of TRIHEDRON in English

/ traɪˈhɪdrən; NAmE ; -ˈhed-/ noun

( geometry ) a solid shape with three sides in addition to its base or ends

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WORD ORIGIN

early 19th cent.: from tri- three + -hedron , on the pattern of words such as polyhedron .

Oxford Advanced Learner's English Dictionary.      Оксфордский английский словарь для изучающик язык на продвинутом уровне.